re.thinking
buildings.
An AI performance layer for the offices Stena Real Estate owns in Poland: from Studio and Spark in Warsaw to High5ive in Kraków and Centrum Południe in Wrocław. Supervised by best-in-class engineers, paid for by the savings it delivers.
Built for an owner that buys the best
and holds it for the long term.
More than 100,000 m² of Grade-A offices across Warsaw, Kraków and Wrocław, including LEED Platinum High5ive and the newly delivered Studio A, owned by a family group with a 2045 net-zero commitment and a long-term hold horizon. All of it operating in one of the most expensive business-electricity markets in the EU.
LEED is the design. Exergio is the operation.
A LEED Platinum building still drifts from design intent once tenants move in: schedules, setpoints and ventilation slip year by year. Exergio keeps the delivered performance real, measured every hour against live weather, occupancy and tariffs.
Savings compound for a long-term owner
Stena buys to keep. 15–35% less energy is not a one-off. It is a lower service charge at every renewal, a stronger NOI every year and a CRREM pathway you can actually show lenders. With €0 CAPEX and nothing added to the capital plan.
Group targets, proven building by building
Stena Fastigheter has committed to net zero by 2045 and −55% by 2030. The Polish portfolio is where that target meets the most carbon-intensive grid the group operates in. Exergio turns it into auditable, per-building evidence, the same way it already does for Skanska-built offices and a Warsaw skyscraper.
One pilot in Warsaw becomes a standard across all seven Polish buildings, and a template for every asset the group holds abroad.
Up to a third of your energy bill buys nothing.
Not comfort. Not light. Not production. Pure waste: equipment running in empty hours, heating and cooling cancelling each other out, controls drifting from anything anyone intended.
Every invoice, every month, for as long as the building runs unmanaged. Exergio turns that line back into savings.
Your building hasn't made a new decision in years.
It just repeats the old ones, every hour.
Every move runs on fixed rules set years ago, blind to today's weather, this hour's energy price, or whether a floor is full or empty. So it just repeats the defaults.
Humans could never keep up. With hundreds of agents, Exergio monitors every device, every minute.
The waste was always expensive.
Now it's regulated.
EPBD & EED bite
Minimum energy performance standards, renovation passports, and building automation mandates for large non-residential buildings, now transposed into national legislation.
The brown discount is real
81% of investors say ESG performance materially impacts valuation. Buildings that can't show auditable performance data face stranding risk under CRREM pathways.
Volatile energy, rising penalties
91% of European firms cite energy as a top concern. Peak demand charges and carbon costs turn operational waste into a growing line item.
Owners who can prove performance win financing, tenants and exit value. Owners who can't, discount. The proof has to come from real operating data, every day, not once a year.
A decision-making layer on top of
what you already own.
No rip-and-replace. No retrofit. Exergio connects to the BMS, meters and sensors already in place and turns thousands of hourly data points into one continuously optimising system.
From first connection to guaranteed savings
in three steps.
Connect
We plug into your existing BMS and meters, about two hours of install per building, then setup completes within the week. Tenants never notice. No capital works, no downtime.
Learn & optimise
Week two, the AI maps and tunes itself to how your building actually behaves. From weeks three to four it starts cutting the waste (setpoints, schedules, free-cooling, demand-based ventilation), with first measured results from week four.
Guarantee
By month two the savings curve is clearly visible. Everything is verified against your building's own baseline and contracted under the Guaranteed Savings Model: you pay against measured outcomes, not licences or promises.
Six modules. One system.
Tap any card to see what it does.
Intelligent Energy Management
24/7 HVAC optimisation against live weather, occupancy and tariffs.
Setpoint tuning, free-cooling, demand-based ventilation, schedule optimisation. The engine behind 15–35% verified savings.
Predictive Maintenance & FDD
Faults and sensor drift flagged days to weeks before they become failures.
Continuous fault detection & diagnosis across every connected system: resolution in hours, not weeks, and fewer site visits.
Virtual FM Assistant
A natural-language interface for the people running the building.
Engineer instructions, automated tickets, plain-language answers from building data. Up to 60% less engineer time on routine work.
Comfort & Wellness
IAQ, CO₂, temperature and humidity managed to comfort targets, not guesswork.
Comfort & Service App for occupants, wellness-grade air quality monitoring. Savings never come at tenants' expense.
ESG / EPC Reporting
Auditable ESG reports generated from real operating data.
GRESB-ready evidence, EPBD compliance support, verified savings documentation. Proof, not estimates.
Grid & Energy Market
Your building stops being a passive consumer.
Peak-penalty avoidance, demand response readiness, load shifting. Turns flexibility into revenue as grids reward it.
Autonomous. Never unsupervised.
Every Exergio building has a Dedicated Building Engineer: a named human who monitors the AI, signs off on its behaviour, and reaches out to you when something needs a decision. The AI does the work of thousands of analyses per hour. The engineer makes sure it's the right work.
The scale no team could match
- Analyses ~10,000 BMS data points per building, every hour
- Re-optimises setpoints continuously against weather, occupancy, tariffs
- Detects faults and drift invisible to manual review
- Documents every action for audit and ESG evidence

The judgment AI shouldn't make alone
- Reviews optimisation patterns and signs off on strategy
- Intervenes on anomalies before they reach tenants
- Calls you proactively, so you never chase a dashboard
- Translates findings into capital-planning advice
One platform. Three lenses.
The owner, the asset manager and the property manager on site ask different questions of the same building. Exergio answers all three, from acquisition to the next refinancing.
Protect what you paid for.
Stena bought Grade-A, certified buildings at Grade-A prices. NOI rises as energy costs fall, and ESG performance becomes auditable evidence for valuations and refinancing: the certificate you paid for, proven in daily operation. Without CAPEX.
Lower service charges. Stickier tenants.
Energy is the largest controllable line in the service charge. Cutting it 15–35% makes every renewal with PwC, Hitachi Energy or Business Link easier, and every building from Warsaw to Wrocław is benchmarked on the same live data, in one view.
Fewer fires to fight on site.
Faults are caught before tenants feel them. Your property manager gets plain-language instructions and automated tickets instead of alarms, and comfort complaints fall because comfort is managed, not reacted to. The BMS stays exactly as it is.
Verified in Poland. Verified for Nordic owners.
Against each building’s own baseline.












“Working with Exergio has helped us take a more proactive approach to energy management across our portfolio. The improvements go beyond cost savings: we see measurable environmental impact, stronger ESG performance, and better control over long-term operational risk. In today's market, that level of transparency and efficiency is essential.”

We don't sell software.
We sell a contracted outcome.
The Guaranteed Savings Model: savings are measured against your building's own baseline, verified continuously, and contracted. Exergio is the real-time performance layer that replaces and upgrades traditional EPC.
*Indicative, based on typical client portfolio carbon intensity. Actual figures are established per building during baseline measurement.
Let us prove it on one building.
Pick the building: Studio B or Spark B in Warsaw, High5ive in Kraków, or Centrum Południe in Wrocław. We connect in ~2 hours, run for 8 weeks, and report verified savings against its own baseline. If we don't deliver, you owe nothing. If we do, the Guaranteed Savings Model scales across the whole Polish portfolio.